Abstract
Lead‐free K0.33Na0.67(NbO3), a morphotropic phase boundary (MPB) composition of Potasium Sodium Niobate (KNN) system has been synthesized in single perovskite phase by partial co‐precipitation method. X‐ray studies revealed monoclinic structure at room temperature. SEM characterization of the sintered ceramics revealed dense and homogeneous packing of grains. Room temperature (RT) dielectric constant (εr) and dielectric loss (tanδ) at 1 KHz were found to be ∼388 and 0.03 respectively , whereas a relatively high density σ∼4.45 g/cm3, remnant polarization (Pr)∼4.95 μc/cm2, coercive field (Ec)∼5.60 kV/cm, Curie temperature (Tc)∼370° C have been observed.
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